Each size has a nut and bolt checker on the same gauge.
Wall mounted thread checker grainger.
The thread checker is an accurate and easy to use thread verifier for both nuts and bolts.
Conveniently assembled onto a wire loop it is especially well suited for distinguishing between similar inch and metric threads.
Thread sizes are permanently stamped onto each gauge.
Starting from the top you have 28 female threaded holes to identify common inch metric bolt sizes following that you ll find 28 male threaded studs to identify nut sizes and at the bottom you ll find screw diameter bolt length checkers.
24 product ratings wall mounted thread checker measure pitch diameter of nuts bolts screws 58 98 trending at 64 04 trending price is based on prices over last 90 days.
Screw size identifiers find thread size screw size thread pitch diameter and drill bit size with one tool.
Mount to a wall for easy access and thread your fastener into holes or onto plugs for quick and accurate size identification.
The wall mounted thread checker quickly identify the most common size nuts bolts in one easy to display center.